Most important Agriculture Statistics Questions are useful for General Agriculture for ICAR and other JRF, SRF, ARS, Ph.D., M.Sc., IBPS, AFO, AO, IFS, NABARD Agri Competitive exams and Tests.

1. In India the available acreage statistics for the total geographical area is–

(A) 51 % (B) 61 %

**(C) 71 %✓** (D) 100%

2. Which measure of central tendency requires data arrangement in ascending or descending order for its estimation ?

(A) Arithmetic mean **(B) Median✓**

(C) Mode (D) Harmonic mean

3. The most frequent occurred value of data or whose frequency is maximum is known as–

(A) Arithmetic mean **(B) Mode✓**

(C) Median (D) GM

4. Rank correlation is tested by–

(A) Quade test (B) Friedmann test

**(C) t – test✓** (D) F – test

5. If any items of the series is zero, which mean of central tendency become zero–

(A) Harmonic mean **(B) Geometric mean✓**

(C) Arithmetic mean (D) Weighed harmonic mean

6. To calculate the average speed, which item of central tendency is most suited–

(A) Mode (B) Median

**(C) Weighted HM✓** (D) GM

7. Which is the simplest measure of dispersion ?

(A) Variance (B) Mean deviation

**(C) Range✓** (D) Standard deviation

8. Mean deviation is the least when calculated about (minimal property)–

(A) Arithmetic mean **(B) Mediam✓**

(C) Mode (D) Geometric mean

9. The relationship between independent and dependent variables is computed by–

**(A) Regression coefficient✓ ** (B) Correlation coefficient

(C) Both (A) and (B) (D) None of these

10. The second central moment (about the arithmetic mean) is always equal to–

**(A) Variance✓ **(B) Mean deviation

(C) Standard deviation (D) None of these

11. When a frequency distribution is not symmetrical about the mean it is said to be–

(A) Kurtosis (B) Moment

**(C) Skewed✓** (D) None of these

12. When the distribution of data is continuous, which distribution is applicable–

**(A) Normal distribution✓** (B) Binomial

(C) Poisson (D) None of these

13. Binomial distribution is a very useful distribution for dealing with………variates–

(A) Continuous **(B) Discrete✓**

(C) Both (A) & (B) (D) None of these

14. The first and third moments about the mean of normal distribution is–

**(A) 0✓** (B) S^{4}

(C) 3s^{4} (D) None of these

15. If two factors are involved in experimentation and both the factors requires long plot sizes, the design suited for this will be–

(A) Split plot **(B) Strip plot✓**

(C) CRD (D) RBD

16. Arithmetic mean and variance are always equal in–

(A) Normal distribution **(B) Poisson distribution✓**

(C) Binomial (D) All of these

17. The probability of committing type I error is known as–

(A) Test of significance **(B) Level of significance✓**

(C) Composite hypothesis (D) None of these

18. Which test is used to test of significance of the difference between two means ?

(A) t – test (B) F – test

**(C) z ~ test✓** (D) X2- test

19. For paired observation, which test is used for testing the significnce of a mean difference–

**(A) Paired t- test✓** (B) t- test

(C) F – test (D) X2- test

20. For comparison of two means from independent samples which test is applicable–

**(A) t-test✓** (B) X2- test

(C) F – test (D) z – test

21. A distribution is said to be symmetrical if the values are uniformly distributed around the–

**(A) Mean✓ ** (B) Mode

(C) Median (D) Mean deviation

22. For calculation least of X^{2}, N should be at least–

(A) 20 (B) 30

(C) 40 **(D) 50✓ **

23. X^{2} test is applied for–

(A) Testing of independence of attributes (B) Genetic problem and detection of linkages

(C) Testing the expectation of a ratio **(D) All of these✓**

24. The validity of correlation coefficient is tested by–

(A) z – test **(B) t – test✓ **

(C) X^{2}_ test (D) f-test

25. Coefficient of determination is a square of–

**(A) Correlation coefficient✓ **(B) Regression coefficient

(C) Both (A) and (B) (D) None of these

26. The significance of multiple correlation (R) is tested by–

(A) t-test **(B) F-test✓**

(C) z – test (D) Paired t – test

27. The allocation of the treatments to the different experimental units in a random manner is known as–

**(A) Randomization✓** (B) Replication

(C) Local control (D) Sampling

28. What is/are the basic principles of field experimentation ?

(A) Randomization (B) Replication

(C) Local control **(D) All of these ✓**

29. Local control is not applied for the design–

(A) RBD **(B) CRD✓**

(C) LSD (D) SPD

30. When the fertility gradient of the field goes in two directions, which design is most appropriate–

(A) Augmented design (B) CRD 67

**(C) LSD✓** (D) SPD

31. In randomized block design, how many treatments can be adopted without any loss of efficiency–

(A) 10 (B) 15

(C) 18 **(D) 20✓**

32. When there are several factors with different levels to be experimented simultaneously with the same level of precision appropriat–

(A) CRD (B) LSD

(C) RBD **(D) Factorial scheme✓**

33. The ANOVA is a tool by which total variation may be split up into several physically assignable components was defined by–

(A) Karl Pearson **(B) RA Fisher✓**

(C) Horace Secrist (D) AL Bowley

34. The values of regression coefficient lies between–

**(A) – co to + co✓** (B) 0 to 1

(C) -1 to +1 (D) 0 to ex:>

35. The regression coefficient is independent of change of–

**(A) Origin✓** (B) Scale

(C) Both (A). & (B) (D) None of these

36. The correlation coefficient is the geometric mean between two–

(A) Median (B) Standard deviation

**(C) Regression coefficient✓** (D) Mode

37. Poisson distribution deals with

**(A) Discrete variables✓** (B) Continuous

(C) Both (A) and (B) (D) None of these

38. In the field experimentation, local control is used for–

(A) Validity of estimate of error (B) Validity of treatment effects

**(C) Diminution of error✓** (D) All of these

39. At present time how many number of forecasts issued by Government of India on important crops–

(A) 50 (B) 60

**(C) 70✓** (D) 80

40. Which transformation is most appropriate for percentages ?

(A) Square root **(B) Arc sine✓ **

(C) Logarithmic (D) All of these

41. Which design provides maximum number of degrees of freedom for the estimation of error as compared with other design for the given number of experimental units ?

(A) RBD **(B) LSD✓**

(C) Augmented design (D) C R D

42. If there are 5 varieties and 4 replications to each, the error degree of freedom for RBD will be–

(A) 20 (B) 19

**(C) 12✓** (D) 9

43. Which design follows the number of rows = number of columns = Number of treatments ?

(A) SPD (B) Strip plot design

**(C) LSD✓** (D) RBD

44. Which design gives precision high enough to reduce the standard error to less than 1% ?

(A) SPD (B) Strip plot design

(C) RBD **(D) LSD✓**

45. In an experiment, a treatment requires large area and b treatment requires a smaller area (different precision), which design is most appropriate–

**(A) Split-plot design✓** (B) LSD

(C) RBD (D) Strip plot design

46. In confounding, the precision on the main effects and certain interactions of a lower order–

**(A) Increases✓** (B) Decreases

(C) Remain same (D) None of these

47. If 4 levels of sowing dates are laid out in the main plot, 5 levels of nitrogen applied in the subplot and they are replicated three times, then what will be the degree of freedom for error–

**(A) 32✓** (B) 6

(C) 20 (D) 60

48. During experimentation, we lost some information and we want to get idea about these values, which technique will be useful–

(A) Field plot technique **(B) Missing plot technique✓**

(C) Seed plot technique (D) Uniformity trial

49. Annawari’ procedure is a–

**(A) Traditional method for estimation of crop yield✓**

(B) Method for weather forecasting

(C) Method for rainfall forecasting

(D) All of these

50. Pie diagram is a type of–

(A) One dimensional diagram **(B) Two dimensional diagram✓**

(C) Three dimensional diagram (D) None of these

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